*{
    margin: 0;
    padding: 0;
    /*css3盒子模型*/
    box-sizing: border-box;
}
/*em和i斜体的文字不倾斜*/
em,
i {
    font-style: normal;
}
/*去掉li的小圆点*/
li{
    list-style: none;
}
img {
    /*照顾低版本的浏览器，如果图片外面包含了链接会有边框的问题*/
    border: 0;
    /*取消图片底侧有空白缝隙的问题*/
    vertical-align: middle;
}
button {
    cursor: pointer;
}
a {
    color: #666;
    text-decoration: none;
}
a:hover {
    color: #c81623;
}
button,
input {
    font-family: Mixrosoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5b8b\4f53", sans-serif;
    /*默认有灰色边框我们需要手动去掉*/
    border: 0;
    outline: none;/*去除蓝色边框颜色*/
}
body {
    /*css3 抗锯齿形 让文字显示得更加清晰*/
    -webkit-font-smoothing: antialiased;
    background-color: #fff;
    font: 12px/1.5 Mixrosoft YaHei, Heiti SC, tahoma, arial, Hiragino Sans GB, "\5b8b\4f53", sans-serif;
    color: #666;
}
.hide,
.none {
    display: none;
}
/*清楚浮动*/
.clearfix:after {
    visibility: hidden;
    clear: both;
    display: block;
    content: ".";
    height: 0;
}
.clearfix {
    *zoom: 1;
}